Alert archive / Missouri / Sainte Genevieve County
Weather alerts in Sainte Genevieve County, Missouri, 2012
97 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sainte Genevieve County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 97
- Warnings
- 21
- Watches
- 22
- Advisories
- 20
- Busiest month
- September17 alerts
- Busiest day
- March 2, 20125 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sainte Genevieve County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 6 | 50% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS St. Louis, MO: tornado warnings | 27 | 6 | 78% | 20 | 55% | 11 min |
| NWS St. Louis, MO: severe thunderstorm warnings | 346 | 163 | 53% | 601 | 81% | 22 min |
| NWS St. Louis, MO: flash flood warnings | 28 | 9 | 68% | 17 | 88% | 144 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 11, 3:18 PM CST | Winter Weather Advisory | LSX | 33 hr |
| Jan 16, 11:47 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 17, 1:50 AM CST | Mesoscale Discussion | SPC | 85 min |
| Jan 17, 5:22 AM CST | Severe Thunderstorm Warning | LSX | 38 min |
| Jan 17, 6:01 AM CST | Severe Thunderstorm Warning | LSX | 44 min |
| Jan 20, 11:23 AM CST | Winter Weather Advisory | LSX | 12 hr |
| Jan 22, 5:37 PM CST | Mesoscale Discussion | SPC | 113 min |
| Feb 12, 3:02 PM CST | Winter Weather Advisory | LSX | 39 hr |
| Feb 23, 2:28 PM CST | Wind Advisory | LSX | 16 hr |
| Feb 26, 5:25 AM CST | Red Flag Warning | LSX | 12 hr |
| Feb 29, 12:49 AM CST | Mesoscale Discussion | SPC | 56 min |
| Feb 29, 1:14 AM CST | Tornado Watch | SPC | 11 hr |
| Feb 29, 2:31 AM CST | Severe Thunderstorm Warning | LSX | 31 min |
| Mar 2, 1:46 AM CST | Mesoscale Discussion | SPC | 89 min |
| Mar 2, 2:07 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 2, 5:52 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 2, 9:54 AM CST | Tornado Watch | SPC | 6 hr |
| Mar 2, 1:59 PM CST | Wind Advisory | LSX | 4 hr |
| Mar 5, 2:00 PM CST | Red Flag Warning | LSX | 30 hr |
| Mar 5, 3:36 PM CST | Wind Advisory | LSX | 26 hr |
| Mar 6, 3:41 PM CST | Wind Advisory | LSX | 24 hr |
| Mar 17, 3:38 PM CDT | Flash Flood Watch | LSX | 6 hr |
| Mar 23, 6:43 PM CDT | Mesoscale Discussion | SPC | 32 min |
| Apr 9, 3:10 PM CDT | Freeze Watch | LSX | 12 hr |
| Apr 10, 2:45 AM CDT | Freeze Warning | LSX | 29 hr |
| Apr 11, 3:20 AM CDT | Freeze Warning | LSX | 29 hr |
| Apr 15, 4:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 15, 4:42 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 15, 7:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 28, 1:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 28, 5:15 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 28, 6:10 PM CDT | Severe Thunderstorm Warning | LSX | 34 min |
| May 20, 1:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 4, 2:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 6:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 11, 9:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 11, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 16, 10:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 27, 3:24 AM CDT | Heat Advisory | LSX | 12 days |
| Jun 29, 3:30 PM CDT | Excessive Heat Warning | LSX | 8 days |
| Jul 1, 1:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 2, 5:16 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 12:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 8, 6:08 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 15, 3:51 PM CDT | Heat Advisory | LSX | 4 days |
| Jul 20, 4:00 AM CDT | Heat Advisory | LSX | 7 days |
| Jul 26, 1:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 26, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 26, 3:55 PM CDT | Mesoscale Discussion | SPC | 35 min |
| Jul 26, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | 28 min |
| Jul 27, 12:52 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 3:23 PM CDT | Severe Thunderstorm Warning | LSX | 22 min |
| Aug 1, 3:42 AM CDT | Heat Advisory | LSX | 15 hr |
| Aug 2, 11:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 2, 7:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 3, 2:23 PM CDT | Heat Advisory | LSX | 30 hr |
| Aug 4, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 10:59 PM CDT | Severe Thunderstorm Warning | LSX | 46 min |
| Aug 16, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 31, 1:26 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 31, 1:56 PM CDT | Tornado Watch | SPC | 8 hr |
| Aug 31, 6:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Sep 1, 1:19 PM CDT | Tornado Watch | SPC | 8 hr |
| Sep 1, 3:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 5, 3:07 AM CDT | Heat Advisory | LSX | 12 hr |
| Sep 6, 10:52 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Sep 6, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 6, 2:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Sep 6, 3:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Sep 6, 4:38 PM CDT | Severe Thunderstorm Warning | LSX | 37 min |
| Sep 7, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 5:16 PM CDT | Severe Thunderstorm Warning | LSX | 30 min |
| Sep 7, 6:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 7, 7:03 PM CDT | Severe Thunderstorm Warning | LSX | 42 min |
| Sep 7, 7:35 PM CDT | Severe Thunderstorm Warning | LSX | 20 min |
| Sep 25, 12:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Sep 25, 12:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Sep 25, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 25, 6:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 7, 3:13 AM CDT | Frost Advisory | LSX | 30 hr |
| Oct 17, 1:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 17, 5:23 PM CDT | Severe Thunderstorm Warning | LSX | 52 min |
| Oct 17, 6:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Oct 25, 3:47 PM CDT | Freeze Watch | LSX | 12 hr |
| Oct 26, 3:35 AM CDT | Freeze Warning | LSX | 28 hr |
| Oct 27, 2:32 PM CDT | Freeze Warning | LSX | 17 hr |
| Oct 28, 2:39 PM CDT | Freeze Warning | LSX | 17 hr |
| Nov 11, 4:24 AM CST | Wind Advisory | LSX | 11 hr |
| Nov 20, 5:44 PM CST | Dense Fog Advisory | LSX | 20 hr |
| Dec 19, 3:34 PM CST | Wind Advisory | LSX | 29 hr |
| Dec 23, 2:57 PM CST | Winter Storm Watch | LSX | 37 hr |
| Dec 25, 4:17 AM CST | Winter Weather Advisory | LSX | 28 hr |
| Dec 25, 3:20 PM CST | Winter Storm Warning | LSX | 17 hr |
| Dec 28, 11:54 AM CST | Winter Weather Advisory | LSX | 14 hr |
| Dec 28, 3:44 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 30, 3:03 PM CST | Winter Weather Advisory | LSX | 39 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 12 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 34 |
| Flooding | |
| Flash Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.